From: "The Enlightenment"


He was also very critical of the shoddy and brutal treatment they received by
some elements of the US navy after surrendering to the Canadians. Also annoyed
at what they regarded as paranoia. The Germans regarded the Americans as
totally overcome by anti-nazi propaganda and demonisation of them and told them
this.

Of course, by this time word of the Nazi's extermination camps had become
widespread. Of course, this guy spent most of the war stuffed in a submarine
and probably had little real sense of the aura of outrage in the American
forces. He probably was lucky not to have been slapped around by some US Navy
guy for even opening his mouth on the subject.
Dave